Anthony Causi survived with two young children.
Many of New York’s professional teams and several players posted messages on Twitter expressing sadness, condolences and paying tribute to him.
“Do you know how many athletes reached out when they heard he was sick?” said Stephen Lynch, Editor-in-Chief at the newspaper.
“Players from every team, sending thoughts, hoping he was going to be all right.”
He spent a quarter-century documenting New York sports through his camera lens.